Home / 8,718.62-13,075.80-6,109.46

Finding the Fourth Proportional to 8,718.62, 13,075.80 and 6,109.46

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Solution

The fourth proportional to 8,718.62, 13,075.80 and 6,109.46 is: 9,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.62 : 13,075.80 = 6,109.46 : x
  2. Step 2: Convert to fraction form
    8,718.62/13,075.80 = 6,109.46/x
  3. Step 3: Cross multiply
    8,718.62x = 13,075.80 × 6,109.46
  4. Step 4: Simplify right side
    8,718.62x = 79,886,077.07
  5. Step 5: Solve for x
    x = 79,886,077.07/8,718.62
  6. Step 6: Final answer
    x = 9,162.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.